Porduct Overview

Description

Overload relays are devices that protect electric motors from overloads and phase failure. When the motor is overloaded, it detects this and terminates the power flow, preventing the motor from overheating and winding damage.

Electric value	AC50/60Hz, 690V, 0.1A~630A
Tripping class	10A
Mounting version	Plug-in: Available for EKR2-13,23,33

Type Designation

EK	R	2	13	10
Company code	Thermal Overload Relay	Design sequence Number	Frame Size	Code of current rating: Basic specification, expressed with the rated operational current (380V/400V, AC3)

Feature

3-phase bimetal
Continuously adjustable current settings,
Temperature compensation
Tripping indicator
Test button, when motor needs emergency stops during operation, it is possible to stop the motor
by cutting off its contact from the magnetic contact with test button. In order to test the operation of thermal overload relay contacts, immediate testing is possible by pulling up test button which changes NO/NC contact.
Stop button, when motor needs emergency stops during operation, it is possible to stop the motor by cutting off its contact from the magnetic contact with stop button.
Manual and automatic reset button
Electrically separated 1N/O plus 1N/C contact

Technical parameters

Technical Data

Protection property
Item	Series No.	I/In		Operating time Tp	Test condition
Overload protection	1	1.05		>2 h	Start from cold status
	2	1.2		≤2h	Start from heat status, right after item No.1
	3	1.5		≤2min	Start from heat status, right after item No.1
	4	7.2		2s	Start from cold status
Phase failure protection	5	Any two phases	Another phases	>2 h	Start from cold status
		1	0.9
	6	1.15	0	≤2 h	Start from heat status, right after item No.5

Thermal Overload Relay Curve

Main Technical Data
Phase failure protection function		Yes
Automatic & manual reset		Yes
Temperature compensation		Yes
Tripping indicator		Yes
Test & stop pushbutton		Yes
Mounting mode	Plug-in	Yes
	Independent	Yes
	No. of contacts	1N/O+1N/C
Auxiliary contacts	Rated current (A) (AC-15 220V)	2.73
	Rated current (A) (AC-15 380V)	1.58
	Rated current (A) (DC-13 220V)	0.2

Dimensions

Wiring
Items			EKR2-13	EKR2-23	EKR2-33
Cross section area of conductor mm2	Main circuit	Single core or stranded wire	1~4	4~10	4~35
	Main circuit	Wiring screw	M4	M4	M10
	Auxiliary circuit	Single core or stranded wire	0.5~2.5	0.5~2.5	0.5~2.5
	Auxiliary circuit	Wiring screw	M3.5	M3.5	M3.5

Product selection form

Assembly with contactor
Model of overload relay	Code	Rated current (A)	Recommended fuse type (Recommended RT16)		Contactor Matched
Model of overload relay	Code	Rated current (A)	aM	gG	Contactor Matched
EKR2-13	1301	0.1~0.16	0.25	2	EKC1-09 EKC1-12 EKC1-18 EKC1-25 EKC1-32
	1302	0.16~0.25	0.5	2
	1303	0.25~0.4	1	2
	1304	0.4~0.63	1	2
	1305	0.63~1	2	4
	1306	1~1.6	2	4
	1307	1.6~2.5	4	6
	1308	2.5~4	6	10
	1310	4~6	8	16
	1312	5.5~8	12	20
	1314	7~10	12	20
	1316	9~13	16	25
	1321	12~18	20	35
	1322	17~25	25	50
EKR2-23	2353	23~32	40	63	EKC1-32
EKR2-23	2355	30~40	40	80	EKC1-32
EKR2-33	3353	23~32	40	63	EKC1-40 EKC1-50 EKC1-65 EKC1-80 EKC1-95
	3355	30~40	40	100
	3357	37~50	63	100
	3359	48~65	63	100
	3361	55~70	80	125
	3363	63~80	80	125
	3365	80~93	100	160

Reference No.	Specification
EKR2-1301	Thermal Overload Relay Current 0.1-0.16A
EKR2-1302	Thermal Overload Relay Current 0.16-0.25A
EKR2-1303	Thermal Overload Relay Current 0.25-0.4A
EKR2-1304	Thermal Overload Relay Current 0.4-0.63A
EKR2-1305	Thermal Overload Relay Current 0.63-1A
EKR2-1306	Thermal Overload Relay Current 1-1.6A
EKR2-1307	Thermal Overload Relay Current 1.6-2.5A
EKR2-1308	Thermal Overload Relay Current 2.5-4A
EKR2-1310	Thermal Overload Relay Current 4-6A
EKR2-1312	Thermal Overload Relay Current 5.5-8A
EKR2-1314	Thermal Overload Relay Current 7-10A
EKR2-1316	Thermal Overload Relay Current 9-13A
EKR2-1321	Thermal Overload Relay Current 12-18A
EKR2-1322	Thermal Overload Relay Current 17-25A
EKR2-2353	Thermal Overload Relay Current 23-32A
EKR2-2355	Thermal Overload Relay Current 30-40A
EKR2-3353	Thermal Overload Relay Current 23-32A
EKR2-3355	Thermal Overload Relay Current 30-40A
EKR2-3357	Thermal Overload Relay Current 37-50A
EKR2-3359	Thermal Overload Relay Current 48-65A
EKR2-3361	Thermal Overload Relay Current 55-70A
EKR2-3363	Thermal Overload Relay Current 63-80A
EKR2-3365	Thermal Overload Relay Current 80-93A

Download Files

Porduct Overview

Description

Electric value	AC50/60Hz, 690V, 0.1A~630A
Tripping class	10A
Mounting version	Plug-in: Available for EKR2-13,23,33

Type Designation

EK	R	2	13	10
Company code	Thermal Overload Relay	Design sequence Number	Frame Size	Code of current rating: Basic specification, expressed with the rated operational current (380V/400V, AC3)

Feature

3-phase bimetal
Continuously adjustable current settings,
Temperature compensation
Tripping indicator
Test button, when motor needs emergency stops during operation, it is possible to stop the motor
by cutting off its contact from the magnetic contact with test button. In order to test the operation of thermal overload relay contacts, immediate testing is possible by pulling up test button which changes NO/NC contact.
Stop button, when motor needs emergency stops during operation, it is possible to stop the motor by cutting off its contact from the magnetic contact with stop button.
Manual and automatic reset button
Electrically separated 1N/O plus 1N/C contact

Technical parameters

Technical Data

Protection property
Item	Series No.	I/In		Operating time Tp	Test condition
Overload protection	1	1.05		>2 h	Start from cold status
	2	1.2		≤2h	Start from heat status, right after item No.1
	3	1.5		≤2min	Start from heat status, right after item No.1
	4	7.2		2s	Start from cold status
Phase failure protection	5	Any two phases	Another phases	>2 h	Start from cold status
		1	0.9
	6	1.15	0	≤2 h	Start from heat status, right after item No.5

Thermal Overload Relay Curve

Main Technical Data
Phase failure protection function		Yes
Automatic & manual reset		Yes
Temperature compensation		Yes
Tripping indicator		Yes
Test & stop pushbutton		Yes
Mounting mode	Plug-in	Yes
	Independent	Yes
	No. of contacts	1N/O+1N/C
Auxiliary contacts	Rated current (A) (AC-15 220V)	2.73
	Rated current (A) (AC-15 380V)	1.58
	Rated current (A) (DC-13 220V)	0.2

Dimensions

Wiring
Items			EKR2-13	EKR2-23	EKR2-33
Cross section area of conductor mm2	Main circuit	Single core or stranded wire	1~4	4~10	4~35
	Main circuit	Wiring screw	M4	M4	M10
	Auxiliary circuit	Single core or stranded wire	0.5~2.5	0.5~2.5	0.5~2.5
	Auxiliary circuit	Wiring screw	M3.5	M3.5	M3.5

Product selection form

Assembly with contactor
Model of overload relay	Code	Rated current (A)	Recommended fuse type (Recommended RT16)		Contactor Matched
Model of overload relay	Code	Rated current (A)	aM	gG	Contactor Matched
EKR2-13	1301	0.1~0.16	0.25	2	EKC1-09 EKC1-12 EKC1-18 EKC1-25 EKC1-32
	1302	0.16~0.25	0.5	2
	1303	0.25~0.4	1	2
	1304	0.4~0.63	1	2
	1305	0.63~1	2	4
	1306	1~1.6	2	4
	1307	1.6~2.5	4	6
	1308	2.5~4	6	10
	1310	4~6	8	16
	1312	5.5~8	12	20
	1314	7~10	12	20
	1316	9~13	16	25
	1321	12~18	20	35
	1322	17~25	25	50
EKR2-23	2353	23~32	40	63	EKC1-32
EKR2-23	2355	30~40	40	80	EKC1-32
EKR2-33	3353	23~32	40	63	EKC1-40 EKC1-50 EKC1-65 EKC1-80 EKC1-95
	3355	30~40	40	100
	3357	37~50	63	100
	3359	48~65	63	100
	3361	55~70	80	125
	3363	63~80	80	125
	3365	80~93	100	160

Reference No.	Specification
EKR2-1301	Thermal Overload Relay Current 0.1-0.16A
EKR2-1302	Thermal Overload Relay Current 0.16-0.25A
EKR2-1303	Thermal Overload Relay Current 0.25-0.4A
EKR2-1304	Thermal Overload Relay Current 0.4-0.63A
EKR2-1305	Thermal Overload Relay Current 0.63-1A
EKR2-1306	Thermal Overload Relay Current 1-1.6A
EKR2-1307	Thermal Overload Relay Current 1.6-2.5A
EKR2-1308	Thermal Overload Relay Current 2.5-4A
EKR2-1310	Thermal Overload Relay Current 4-6A
EKR2-1312	Thermal Overload Relay Current 5.5-8A
EKR2-1314	Thermal Overload Relay Current 7-10A
EKR2-1316	Thermal Overload Relay Current 9-13A
EKR2-1321	Thermal Overload Relay Current 12-18A
EKR2-1322	Thermal Overload Relay Current 17-25A
EKR2-2353	Thermal Overload Relay Current 23-32A
EKR2-2355	Thermal Overload Relay Current 30-40A
EKR2-3353	Thermal Overload Relay Current 23-32A
EKR2-3355	Thermal Overload Relay Current 30-40A
EKR2-3357	Thermal Overload Relay Current 37-50A
EKR2-3359	Thermal Overload Relay Current 48-65A
EKR2-3361	Thermal Overload Relay Current 55-70A
EKR2-3363	Thermal Overload Relay Current 63-80A
EKR2-3365	Thermal Overload Relay Current 80-93A

Tripping Class 10 Adjustable Current Thermal Overload Relay

Thermal relays are protective electrical appliances used for overload protection of motors or other electrical equipment and electrical circuits.

Tripping Class 10 Adjustable Current Thermal Overload Relay

Porduct Overview

Description

Type Designation

Feature

Technical parameters

Technical Data

Protection property

Thermal Overload Relay Curve

Main Technical Data

Dimensions

Wiring

Product selection form

Assembly with contactor

Download Files

Porduct Overview

Description

Type Designation

Feature

Technical parameters

Technical Data

Protection property

Thermal Overload Relay Curve

Main Technical Data

Dimensions

Wiring

Product selection form

Assembly with contactor

Download Files

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